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Joining device of a metal segment to a concrete segment in a hybrid hollow tower

a technology of hybrid hollow tower and concrete, which is applied in the field of high hollow tower, can solve the problems of relative displacement between the ducts, the assembly process is severely penalized, and it is more difficult to ensure the correct positioning of prestressed steel bars, so as to reduce the width, facilitate the installation, and reduce the effect of the anchoring structur

Active Publication Date: 2018-11-08
GAMESA INNOVATION & TECH SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent is about improving connectors used in anchoring rings in concrete. The connectors have a part that sticks out, which makes them better at sticking to the concrete. This makes the anchoring more secure.

Problems solved by technology

Relative displacements between the ducts during concreting can occur.In case of on-site concrete towers, the assembly process is severely penalized.
Among its disadvantages the following should be noted:It is more difficult to ensure the correct positioning of the prestressed steel bars 5.
Relative displacement between them can occur during concreting.In case of on-site concrete towers, the assembly process is severely penalized.

Method used

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  • Joining device of a metal segment to a concrete segment in a hybrid hollow tower
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  • Joining device of a metal segment to a concrete segment in a hybrid hollow tower

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Embodiment Construction

[0024]The present invention propose the use of a bolt cage as a joining device of a metal segment to a concrete segment of a hollow tower such as those used to support wind turbines where said segments have a cylindrical and / or frustoconical shape.

[0025]The use of a bolt cage for joining a metal tower 16 to a foundation is well known (see FIGS. 2a and 2b) being the bolt cage formed by a set of bolts 22 attached to an anchoring ring 24 by nuts 34 arranged on its both sides. The set of bolts 22 is arranged in said anchoring ring 24 following the traces of two concentric circumferences at a prefixed distance between them.

[0026]That bolt cage is installed in the hole of the foundation of the metal tower 16 leaving the free ends of the bolts 22 protruding from the ground plane 12 so that can serve as joining means to the base 14 of the metal tower 16 together the nuts 36. At a later stage the concreting of the foundation is carried out and the bolt cage is embedded by the concrete.

[0027]...

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PUM

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Abstract

A joining device of a metal segment to a concrete segment of a hollow tower. The joining device is formed by a set of bolts passing by one of its ends by holes of an anchoring ring and attached to its both sides by a first set of nuts and arranged to be attached by its other end to the base of the metal segment by a second set of nuts. The anchoring ring includes a set of connectors extending externally and internally thereto in a substantially perpendicular direction to the bolts and arranged so do not interfere with reinforcement. The invention also refers to a hollow tower comprising at least one metal segment joined to a concrete segment by the joining device.

Description

FIELD OF THE INVENTION[0001]The invention relates to high hollow towers such as those that support wind turbines of several MW and, more particularly, to a joining device of a metal segment to a concrete segment in a hybrid hollow tower.BACKGROUND[0002]The development and innovation in the field of wind turbines in recent decades has resulted in increasing the size and power of wind turbines thus leading to an increase in the dimensions in height and diameter of their supporting towers.[0003]Hybrid towers formed by a set of concrete segments in the lower part and one or more metal segments in the upper part are one the tower architectures suitable to meet these requirements.[0004]For connecting a metal segment to a concrete segment the most commonly used solution is probably using prestressed steel bars 5 arranged in a widened area 13 of the upper end of the concrete segment 11 fixed to an anchoring plate 7 by nuts 8 (see FIGS. 1a and 1b). Once the construction of the concrete segme...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E04H12/08F03D13/20E04H12/12
CPCE04H12/08F03D13/20E04H12/12E04H12/02Y02E10/728F05B2230/60F05B2240/912Y02P70/50Y02E10/72
Inventor BALLESTER MUNOZ, FRANCISCORICO ARENAL, JOKINGIL FERNANDEZ, JORGEPEREZ FERNANDEZ, FRANCISCO JAVIER
Owner GAMESA INNOVATION & TECH SA